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lc3-google: avoid C2229 on MSVC due to zero-sized array not as last element

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This commit is contained in:
Matthias Ringwald 2022-06-08 18:23:22 +02:00
parent b56e8b561b
commit cbf509016d
1 changed files with 31 additions and 21 deletions
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52
3rd-party/lc3-google/include/lc3_private.h vendored
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@ -99,16 +99,22 @@ typedef struct lc3_spec_analysis {
int nbits_spare;
} lc3_spec_analysis_t;
// BK: to avoid C2229 on MSVC due to zero-sized array not being the last element in struct when
// LC3_ENCODER_MEM_T is used, we define the struct with the help of a macro
#define LC3_ENCODER_FIELDS(SAMPLES) \
enum lc3_dt dt; \
enum lc3_srate sr, sr_pcm; \
\
lc3_attdet_analysis_t attdet; \
lc3_ltpf_analysis_t ltpf; \
lc3_spec_analysis_t spec; \
\
int16_t *xt; \
float *xs, *xd, s[SAMPLES];
struct lc3_encoder {
enum lc3_dt dt;
enum lc3_srate sr, sr_pcm;
lc3_attdet_analysis_t attdet;
lc3_ltpf_analysis_t ltpf;
lc3_spec_analysis_t spec;
int16_t *xt;
float *xs, *xd, s[0];
LC3_ENCODER_FIELDS(0)
};
#define LC3_ENCODER_BUFFER_COUNT(dt_us, sr_hz) \
@ -116,9 +122,8 @@ struct lc3_encoder {
__LC3_NS(dt_us, sr_hz) + __LC3_ND(dt_us, sr_hz) )
#define LC3_ENCODER_MEM_T(dt_us, sr_hz) \
struct { \
struct lc3_encoder __e; \
float __s[LC3_ENCODER_BUFFER_COUNT(dt_us, sr_hz)]; \
struct { \
LC3_ENCODER_FIELDS( LC3_ENCODER_BUFFER_COUNT(dt_us, sr_hz) ) \
}
@ -138,14 +143,20 @@ typedef struct lc3_plc_state {
float alpha;
} lc3_plc_state_t;
// BK: to avoid C2229 on MSVC due to zero-sized array not being the last element in struct when
// LC3_ENCODER_MEM_T is used, we define the struct with the help of a macro
#define LC3_DECODER_FIELDS(SAMPLES) \
enum lc3_dt dt; \
enum lc3_srate sr, sr_pcm; \
\
lc3_ltpf_synthesis_t ltpf; \
lc3_plc_state_t plc; \
\
float *xh, *xs, *xd, *xg, s[SAMPLES];
struct lc3_decoder {
enum lc3_dt dt;
enum lc3_srate sr, sr_pcm;
lc3_ltpf_synthesis_t ltpf;
lc3_plc_state_t plc;
float *xh, *xs, *xd, *xg, s[0];
LC3_DECODER_FIELDS(0)
};
#define LC3_DECODER_BUFFER_COUNT(dt_us, sr_hz) \
@ -154,8 +165,7 @@ struct lc3_decoder {
#define LC3_DECODER_MEM_T(dt_us, sr_hz) \
struct { \
struct lc3_decoder __d; \
float __s[LC3_DECODER_BUFFER_COUNT(dt_us, sr_hz)]; \
LC3_DECODER_FIELDS(LC3_DECODER_BUFFER_COUNT(dt_us, sr_hz)) \
}